package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user , HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        if(StringUtils.isNotEmpty(phone)){
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);

            //调用阿里云提供的短信服务API完成发送短信
        //      SMSUtils.sendMessage("阿里云短信测试","SMS_154950909",phone,code);

            //需要将生成的验证码保存到Session
            //    session.setAttribute(phone,code);

            //需要将生成的验证码保存到Redis,设置过期时间
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);
            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");

    }
    /**
     * 移动端用户登录
     *
     */


    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从session中获得保存的验证码
        // String codeSessin = (String)session.getAttribute(phone);
        //从Redis中获取缓存的验证码
        Object codeSessin = redisTemplate.opsForValue().get(phone);




        //进行验证码的对比
        if(codeSessin!=null && codeSessin.equals(code)){
            //如果能够比对，说明登录成功

            //下面就要判断是否是新用户
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();

            queryWrapper.eq(User::getPhone,phone);


            User user = userService.getOne(queryWrapper);
            //判读用户是否是新用户，如果是就给存在用户表
            if(user==null){
                //判断当前是否是新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //登陆成功后删除redis中的验证码
            redisTemplate.delete(phone);
            return R.success(user);


        }
        return  R.error("登陆失败");

    }


    @PostMapping("/loginout")
    public R<String> logout(HttpSession session) {
        //清理Session中保存的当前登录员工的id
        session.removeAttribute("user");
        return R.success("退出成功");
    }


}
